arc-bridge: Add the ARC Bridge Service

chromeos/arc/bridge/common/arc_instance_messages.h

Index: chromeos/arc/bridge/common/arc_instance_messages.h
diff --git a/chromeos/arc/bridge/common/arc_instance_messages.h b/chromeos/arc/bridge/common/arc_instance_messages.h
index 607718d12842306f1cdc1f27b0b3cd95471719ce..11db05c573eea7d4dd384b4e529ae77519a6a3be 100644
--- a/chromeos/arc/bridge/common/arc_instance_messages.h
+++ b/chromeos/arc/bridge/common/arc_instance_messages.h
@@ -2,14 +2,19 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-// Messages sent from the ARC instance to the host
+// Messages sent from the host to the ARC instance.
 // Multiply-included message file, hence no include guard.
 
 #include <stdint.h>
 
 #include "base/file_descriptor_posix.h"
+#include "chromeos/chromeos_export.h"
 #include "ipc/ipc_message_macros.h"
 
+// Export IPC messages.
+#undef IPC_MESSAGE_EXPORT
+#define IPC_MESSAGE_EXPORT CHROMEOS_EXPORT
+
 #define IPC_MESSAGE_START ArcInstanceMsgStart
 
 // Registers a virtual input device on the container side.